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Switching frequency of Digital Magnetic Sensor

userHead nhatnam06dt1 2013-01-05 08:55:09 6646 Views5 Replies
Hi all!
I want to measure the speed of a motor (200Hz). And I use digital magnetic sensor board.
-> How much is maximum switching frequency of this board?  I want to measure the frequency is 200Hz.
Please help me as soon as possible
P/s: If anyone knows how to measure the frequency in my case better, please tell me about it.
Thank in advance.
Best Regards,
[img]http://uphinh.ssc.vn/images/139encoder.jpg[/img]
2013-01-07 16:09:30 The principle of the hall sensor I know is not complex. It just work as a switch and the schematic is very simple also. I find some links related. Hope it's useful.  ;)
[url=http://www.zipfelmaus.com/blog/arduino-with-hall-sensor/]http://www.zipfelmaus.com/blog/arduino-with-hall-sensor/[/url]
[url=http://pdf1.alldatasheet.com/datasheet-pdf/view/104114/ANACHIP/AH175.html]http://pdf1.alldatasheet.com/datasheet-pdf/view/104114/ANACHIP/AH175.html[/url]

I just checked the datasheet of your hall sensor. I guess the way to use the AH175 is similar with the MLX90248 used in the sample.Have a try? ;D
userHeadPic Lauren
2013-01-07 15:18:43 Thank Lauren!
Hall sensor, which is one way that I'm trying to do. I use IC Hall as AH175. But I do not understand the principle of it.
If you know. Please help me.
Thank in advance!
userHeadPic nhatnam06dt1
2013-01-07 13:51:33 I think this product is not fit with the requirement of your application. But I haven't tested it. Have you this digital magnet sensor in hand?
The hall sensor maybe what you want!  ;)

Regards,
Lauren
userHeadPic Lauren
2013-01-07 08:42:48 Oh, it's your product. Digital Magnet Sensor [url=http://www.dfrobot.com/index.php?route=product/product&path=36_60&product_id=233#.UOoYYuRwog0]http://www.dfrobot.com/index.php?route=product/product&path=36_60&product_id=233#.UOoYYuRwog0[/url]
userHeadPic nhatnam06dt1
2013-01-05 18:39:25 Wow,

Could you please show me the digital magnet sensor you using?
I think the requirement for the magnet response speed should be high.
=-= I just used motor integrated with magnet sensor. But haven't  tried  DIY version. 

Regards,
Lauren
userHeadPic Lauren